I attended a scientific meeting over 2 days in this hotel and stayed one night. This Mariott makes me want to stay at more and ditch my Hilton Honors program. I stayed in a room that had access to the concierge lounge and the free breakfast was as good as some paid buffet breakfasts. The best part of this hotel is that every staff person you talk to were genuinely friendly and willing to go out of their way to help in any way possible. My company got a hospitality suite that was on the 1st floor that was perfect for a business meeting/ evening reception.
Location notes- accessible to the White Flint metro without crossing a street- the tunnel comes up in the hotel parking lot. McDonalds close. I did not have a chance to run, but I heard the hotel was across the street from a long jogging trail- accessible behind McDonalds.